Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Lori Osbeck

Grand Rapids, MI

Bib: 4590 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 30047
Gender (Female)
#0 / 12338
Masters (Masters Women)
#0 / 5451
Division (F55-59)
#0 / 873
Race Day Weather
42°/32°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
27 ft elev
5K· 3.11 mi
13:03/mi
40:32
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
12:20/mi
1:18:50
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
13:01/mi
1:59:16
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
13:59/mi
2:51:23
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
13:20/mi
3:24:31
↑ 350.2%
30 ft elev
30K· 18.64 mi
14:09/mi
4:08:28
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
14:23/mi
4:53:08
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
14:40/mi
5:38:41
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
14:17/mi
5:58:10
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:51:2313:08 /mi⚡ faster
2nd Half
3:06:4714:11 /mi+9.0%
Positive split — 9.0% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:1540:3213:0340:32
13:03
-
10K
6.21 mi08:43:331:18:5012:4138:18
12:20
-0:43
15K
9.32 mi09:23:591:59:1612:4840:26
13:01
+0:41
21K
13.05 mi10:16:062:51:2313:0852:07
13:59
+0:58
25K
15.53 mi10:49:143:24:3113:1033:08
13:20
-0:39
30K
18.64 mi11:33:114:08:2813:2043:57
14:09
+0:49
35K
21.75 mi12:17:514:53:0813:2944:40
14:23
+0:14
40K
24.85 mi13:03:245:38:4113:3845:33
14:40
+0:17
Finish
26.22 mi13:22:535:58:1013:4019:29
14:17
-0:23

Checkpoints & Pacing

Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

12:20 /mi

Average Pace

13:40 /mi

Slowest Pace

14:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:32:24

43% of race

Time at Steady Pace

2:40:13

45% of race

Time at Slower Pace

45:33

13% of race

Average Pace: 13:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:05:1540:3213:0340:32
13:03
#27722
10K
6.21 mi08:43:331:18:5012:4138:18
12:20
#27584
15K
9.32 mi09:23:591:59:1612:4840:26
13:01
#27721
21K
13.05 mi10:16:062:51:2313:0852:07
13:59
#27775
25K
15.53 mi10:49:143:24:3113:1033:08
13:20
#27472
30K
18.64 mi11:33:114:08:2813:2043:57
14:09
#27048
35K
21.75 mi12:17:514:53:0813:2944:40
14:23
#26659
40K
24.85 mi13:03:245:38:4113:3845:33
14:40
#26244
Finish
26.22 mi13:22:535:58:1013:4019:29
14:17
#26061
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi27722109106872778810980705
10K6.21 mi3.10 mi27584+13810836+74682+52733410723660
15K9.32 mi3.11 mi27721-13710925-89686-42778810980705
21K13.05 mi3.73 mi27775-5410991-66702-162763511004719
25K15.53 mi2.48 mi27472+30310873+118685+172549510105611
30K18.64 mi3.11 mi27048+42410716+157663+22249319994600
35K21.75 mi3.11 mi26659+38910581+135649+14240429797598
40K24.85 mi3.10 mi26244+41510417+164631+18232529477565
Finish26.22 mi1.37 mi26061+18310343+74630+1228679260532

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×18story building
+279ft-164ft

Overall

27788

Females

10980

F55-59

10980

5K→10K

3.1 - 6.2 mi

Top 91%
×11story building
+103ft-217ft

Overall

27334

Females

10723

F55-59

10723

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+51ft-55ft

Overall

27788

Females

10980

F55-59

10980

15K→21K

9.3 - 13.1 mi

Top 92%
×1story
+20ft-37ft

Overall

27635

Females

11004

F55-59

11004

21K→25K

13.1 - 15.5 mi

Top 85%
×2story building
+35ft-8ft

Overall

25495

Females

10105

F55-59

10105

25K→30K

15.5 - 18.6 mi

Top 83%
×2story building
+58ft-57ft

Overall

24931

Females

9994

F55-59

9994

30K→35K

18.6 - 21.8 mi

Top 80%
×2story building
+98ft-92ft

Overall

24042

Females

9797

F55-59

9797

35K→40K

21.8 - 24.9 mi

Top 77%
×2story building
+36ft-53ft

Overall

23252

Females

9477

F55-59

9477

40K→Finish

24.9 - 26.2 mi

Top 76%
×5story building
+80ft-24ft

Overall

22867

Females

9260

F55-59

9260

Passing Analysis

Category:
Athletes Passed
2934*
Passed By
1273
Net Change
+1661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27722
5K → 10K384*246+138#27722#27584
10K → 15K248*385-137#27584#27721
15K → 21K292*346-54#27721#27775
21K → 25K380*77+303#27775#27472
25K → 30K492*68+424#27472#27048
30K → 35K445*56+389#27048#26659
35K → 40K478*63+415#26659#26244
40K → Finish215*32+183#26244#26061
TOTALS2934*1273+1661

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions